Aye. I'm no expert but there's clearly no 'suit-all answer'. What you fit will depend on the type of driving you do & budget.
I can see why Neilly points his backwards - should have bought a boat. I suppose you could always turn the head round depending on whether you were on the road, green-laneing or going paddling.
I found this on the Expedition Portal site. This guy has run this set up for 8 years & 50,000 miles (15,000 off-road in USA). Pre-filter cyclonic head & custom fit to get it above the bonnet without going the whole snorkel route. Looks a bit naff but obviously works. Guys on the Exped Portal using pre-filters are saying it's keeping their main filters cleaner. Read a research report last night where the conclusion was that pre-electronic management cars are about 10-15% more efficient with a clean air filter. Apparently cars with an electronic brain don't benefit so much as the computer can compensate.
Mad Hat says not worth it if got a filter. I can see that - the filter is there to keep the crud out of the engine so why filter the filter? But you can argue that a pre-filter will reduce the dust & grit clogging up the main air filter letting the engine breath better. Plus don't have to take the filter out so often to clean it
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Not sure what I'm going to do yet - much to do before I fit a snorkel.
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